Air cooling attachment for electric fans



Aug. 30, 1932. c, ADLER, JR 1,874,843

AIR COOLING ATTACHMENT FOR ELECTRIC mus Filed July 15, 1951 INVENTOR. CAMK 624A Patented Aug. 30, 1932 UNITED STATES PATENT OFFICE" CHARLES ADLER, 73., 0] BALTIMORE, MARYLAND, ASSIGNOR TO THE ADLER SAFETY CONTROL COMPANY, OF BALTIMORE, MARYLAND, A CORPORATION OF MARYLAND AIR COOLING ATTACHMENT non ELECTRIC FANS U E D Application filed July 18, 1931. Serial No. 550,474

This invention relates to an air cooling attachment for electric fans and has for its object to provide an improved device that may readily be attached to electric fans whereby the air set in motion by the fanblades will be directed through an improved cooling structure.

Another object is to provide an improved device of the character set forth whereby the same may be attached to fan-structures of either the stationary or oscillating types, so that in case of-its attachment to the oscillfating type of fan, it may oscillate withthe The invention is illustrated in the accompanying drawing, wherein,

Fig. 1 shows an electric fan of the conventional oscillating type with my improved attachment connected thereto, the structure being shown in side elevation.

-Fig. 2 illustrates the same in front elevation, and

Fig. 3 shows the attachment on an enlarged scale and in vertical section.

Referring to the drawing, the numeral 5 designates afan motor of conventional form in which the motor itself, the fan-shaft 6 and fan-blades 7 are all mounted so as to be oscillated with respect to the base.

An annular band or ring 8 is attached to the vertical face of the motor at the rear side of the fanblades, and my improved structure is carried by said band or ring. 1

The improved structure consists of an annular shell 9 having a central receptacle 10 extending horizontally through the shell from front to rear.

This central receptacle 10 is of a considerabl smaller diameter than the shell 9.

- etween the outer wall of the central re ceptacle 10 and the inner wall of the outer shell I provide a series of radial partitions 11, the inner edges of which partitions are suitably secured to the receptable wall while the outer edges thereof are attached to the outer shell.

The particular construction of these partitions 11 is not essential so lon as their arrangement is such as to provi e a series ofmetal surfaces extending between the inner JUN 8193?.

receptacle and the outer shell and to form a series of air-passages 12 extending through the shell from the rear to the front and open at both rear and front, so that the air driven by the fan-blades may pass through said passa es and out through the front ends thereof.

The central receptacle 10, in the present instance, has a screW-cap 13 at its outer or front end so the interior of the same may be accessible.

In the present instance, I provide a plurality of arms 14 which extend horizontally from the outer circumference of the shell 9 back past the fan-blades and engage the band or ring 8, whereby the shell with itscentral receptacle'may be carried by said ring and held in front of the fan-blades.

The receptacle 10 is -to contain ice, which will be held therein by means of the cap 13; and the ice will cool the wall of the receptacle and, by conduction, the partition walls 11, so that the air passing through the passages 12, will be chilled when it is discharged at the front open ends of said passages.

The device may readily be attached to or detached from the fan structure so that loading the receptacle with ice or emptying water from the receptacle may be accomplished with ease.

Having described my invention, I claim,

1. In an air-cooling attachment for electric fans the combination with a fan-structure having fan-blades, of an annular shell supported from the fan-structure in front of the blades and open at both the front and rear sides thereof, a central cooling receptacle in line with the axis of the fan-blades and within the annular shell said receptacle having a movable cover at its front side and a series of radial partitions extending from the annular shell to the wall of the central cooling receptacle to support the latter and to form a series of passages through the shell around the cooling receptacle.

2. In an air cooling attachment forfans the combination with a fan structure, of an annular band carried by said fan structure in front of the fan-blades, a series of radial plates extending inwardly from the inner surface of the annular band and a central too cooling rece tacle sustained by the inner ends of the radia plates.

3. In an air cooling attachment for electric fans, the combination with a fan structure havin fan-blades, of an annular shell open at bot ends and carried by the fan structure, a series of radial partitlons extending inwardly from said annular shell and forming a series of radial air passages and a central receptacle carried by the inner ends of said radial partitions.

In testimony whereof I aifix m si nature.

CHARLES AD E JR. 

